Vapour Control Barrier Roof

The goal of vapor barrier strategies is to prevent moisture from collecting and corrupting building materials.

Vapour control barrier roof.

And the membrane on the bottom is also a vapor barrier. All of our vapour control layers also known as vapour control barriers help to prevent any passage of water vapour into the structure of a building. A vapour control layer is a vapour tight or a vapour check membrane that is installed on the warm side facing towards the liveable area of a roof or on the inside of the exterior house wall. The risk of condensation through warm air from the inside of the building coming into contact with cold surfaces in roofs and walls.

Classic compact flat roof the most famous double vapor barrier of them all. Vapour control barrier layers about roofing supplies stock supply vapour control barrier layers which are used on warm flat roofs between the decking and insulation to prevent moisture penetrating the insulation layer and compromising it s performance. A roof design that includes an adhered roof membrane with multiple layers of insulation with board joints offset and staggered over a vapor retarder air barrier helps lower the risk that air and the moisture it carries will infiltrate the roof system. In fact it is almost a perfect vapor barrier.

That reduction of air and moisture infiltration can then help improve roof longevity. We also stock impermeable air barriers to increase air tightness.